50542643 has 4 divisors (see below), whose sum is σ = 50648640. Its totient is φ = 50436648.

The previous prime is 50542631. The next prime is 50542651. The reversal of 50542643 is 34624505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34624505 = 5 ⋅6924901.

It is a cyclic number.

It is not a de Polignac number, because 50542643 - 2⁶ = 50542579 is a prime.

It is a super-2 number, since 2×50542643² = 5109117522850898, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (50542663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52280 + ... + 53237.

It is an arithmetic number, because the mean of its divisors is an integer number (12662160).

Almost surely, 2^50542643 is an apocalyptic number.

50542643 is a deficient number, since it is larger than the sum of its proper divisors (105997).

50542643 is a wasteful number, since it uses less digits than its factorization.

50542643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105996.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 50542643 is about 7109.3349196672. The cubic root of 50542643 is about 369.7310999718.

The spelling of 50542643 in words is "fifty million, five hundred forty-two thousand, six hundred forty-three".